Measurement Computing PCM-DAS16x/16 - Manual (Page 34)

Interrupt Source Control
The interrupt source is controlled by three bits.
INT2 INT1 INT0 Source
0 0 1 Pacer - Counter 2
0 1 0 External - Pin 7
0 1 1 FIFO Not Empty
1 0 0 FIFO Half Full
1 0 1 End of Channel Scan
The A/D trigger source is controlled by two bits.
TS1 TS0 Source
0 X Software Trigger
1 0 Rising Trigger Input, Pin 5
1 1 Pacer - Counter 2
The range of analog input is set by 4 bits.
G3 G2 G1 G0 Range
1 0 0 0 +/- 10 V
0 0 0 0 +/- 5 V (A/D Std.)
0 0 0 1 +/- 2.5 V
0 0 1 0 +/- 1.25 V
The digital I/O lines may be set as follows via 2 control bits.
UDIR LDIR Bits 7:4 Bits 3:0
0 0 Input Input
0 1 Input Output
1 0 Output Input
1 1 Output Output
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